CN105340145A - Power cable terminal connection device - Google Patents
Power cable terminal connection device Download PDFInfo
- Publication number
- CN105340145A CN105340145A CN201480036703.8A CN201480036703A CN105340145A CN 105340145 A CN105340145 A CN 105340145A CN 201480036703 A CN201480036703 A CN 201480036703A CN 105340145 A CN105340145 A CN 105340145A
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- China
- Prior art keywords
- conduction
- terminal
- cable
- inner wire
- connecting means
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Classifications
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
- H02G15/00—Cable fittings
- H02G15/02—Cable terminations
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B9/00—Power cables
- H01B9/006—Constructional features relating to the conductors
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
- H02G1/00—Methods or apparatus specially adapted for installing, maintaining, repairing or dismantling electric cables or lines
- H02G1/14—Methods or apparatus specially adapted for installing, maintaining, repairing or dismantling electric cables or lines for joining or terminating cables
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
- H02G15/00—Cable fittings
- H02G15/02—Cable terminations
- H02G15/06—Cable terminating boxes, frames or other structures
- H02G15/064—Cable terminating boxes, frames or other structures with devices for relieving electrical stress
- H02G15/068—Cable terminating boxes, frames or other structures with devices for relieving electrical stress connected to the cable shield only
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- Cable Accessories (AREA)
- Coupling Device And Connection With Printed Circuit (AREA)
Abstract
A terminal connection device comprises a contiguous body disposed onto an inner conductor. The inner conductor includes a first end mateable with a power cable connector and a second end. The body comprises a multilayer structure having an inner conductive or semiconductive layer disposed over at least a portion of the power cable connector, an insulating layer and an outer conductive or semiconductive layer. The body surrounds the first end of the inner conductor and extending towards the second end of the inner conductor. The body can also include an electrically isolated section of conductive or semiconductive material. The terminal connection device can be a fully integrated structure, having a pre-installed connection interface, or the terminal connection device can be configured as an adapter which can be mounted in the field to a connection interface.
Description
Technical field
The present invention relates to the terminal connection part for power cable.
Background technology
Along with distributing electric power becomes more complicated due to the appearance of regenerative resource, distributed power generation and the employing of motor vehicle, intelligent power distribution and the inductance be associated are surveyed and are become more useful even necessary.Available sensing can be included in the time relationship between the voltage of the various positions in power distribution network, electric current and voltage and current.
In addition, such as repairing/safeguarding or feature structure upgrading such as adds sensing function and replace in the process of existing cable terminals, existing cable is reconnected to the operation that new terminals may be difficulties.Such as, breakdown cable terminals can comprise the installed position cut-out of existing cable terminals at it.This type of installation site can comprise switchgear packaging part, bus rack or adjacent generator, motor, transformer or miscellaneous equipment.Installation site can provide limited space to carry out replacing and assemble replacement terminals.In addition, when removing existing cable termination, remaining power cable may shorten to a certain extent.This shortening of cable may cause other difficulty, because the cable shortened will still need to provide the electrical connection with its origin endpoint.
Summary of the invention
In general, the disclosure relates to the terminal connection part for power cable such as middle voltage and high-voltage power cable.The disclosure comprises for replacing the technology of terminal connection part and be applicable to the terminal connection part of original equipment in existing cable equipment.In some instances, the disclosure relates to the terminal connection part providing sensing function such as voltage and/or current sensing capability.Sensing function is by reequiping existing cable equipment to provide with new terminal connection part part (such as new complete terminal connection part or new terminal Payload attach fitting).
In one aspect, the disclosure relates to a kind of terminal-connecting means, and this terminal-connecting means comprises setting continuous main body in the conductor.This inner wire comprises the first end that can coordinate with power cable connector, and the second end.This main body comprises sandwich construction, and this sandwich construction has insulating barrier, outer conduction or semi-conductive layer, and is arranged on the interior conduction gone up at least partially or the semi-conductive layer of power cable connector.This main body around the first end of inner wire and the second end towards inner wire extend.This main body also comprises the electric isolution sections of conduction or semiconductive material.
On the other hand, assembly comprises above-described terminal-connecting means, and wherein main body covers the end sections of power connector and power cable.
On the other hand, for providing the adapter of the connection between power cable and connecting interface to comprise overmolding to the continuous main body on inner wire.Inner wire comprises the first end that can coordinate with power cable connector and the second end that can coordinate with connecting interface.This main body comprises sandwich construction, and this sandwich construction has insulating barrier, outer conduction or semi-conductive layer, and is arranged on the interior conduction gone up at least partially or the semi-conductive layer of power cable connector.This main body around the first end of inner wire and the second end towards inner wire extend, wherein the second end of inner wire extends beyond the end of main body.
On the other hand, terminal-connecting means comprises inner wire and setting continuous main body in the conductor.Continuous main body comprises insulating barrier, this insulating barrier around inner wire and the first end extending beyond inner wire to form the empty internal sections adjacent with the end of inner wire.This main body also comprises adjacent with insulating barrier and around the outer conduction of insulating barrier or semi-conductive layer.This main body also comprises the electric isolution sections with the conduction of the exterior surface of insulating barrier or semiconductive material.Terminal-connecting means is configured to the end of cable conductor receiving power cable, the end of the cable conductor of power cable is assemblied in empty internal sections and is electrically connected to the first end of inner wire.The electric isolution sections of conduction or semiconductive material forms the electrode of the capacitor sensor of capacitive voltage sensor.Insulating barrier can operate the dielectric of the capacitor sensor forming capacitive voltage sensor.
On the other hand, assembly comprises terminal-connecting means and power cable.Power cable comprises cable conductor that the length along power cable extends, around the cable insulation of cable conductor (part of cable conductor except stretching out from the cable insulation of the end portion office at power cable), inner cable semiconductor between cable conductor and cable insulation or conductor layer, the inner cable semiconductor adjacent with cable insulation or conductor layer and adjacent and around the outer cable semiconductor of cable insulation or conductor layer with cable insulation.
On the other hand, adapter comprises the inner wire with first end and the second end, and arranges continuous main body in the conductor.This main body comprises insulating barrier, this insulating barrier around inner wire and the first end extending beyond inner wire to form the empty internal sections adjacent with the first end of inner wire.This main body also comprises adjacent with insulating barrier and around the outer conduction of insulating barrier or semi-conductive layer.This main body also comprises the electric isolution sections with the conduction of the exterior surface of insulating barrier or semiconductive material.Adapter is configured to the end of cable conductor receiving power cable, the end of the cable conductor of power cable is assemblied in empty internal sections and is electrically connected to the first end of inner wire.The second end of inner wire extends beyond insulating barrier and outer conduction or semi-conductive layer, and wherein the second end of inner wire is contrary with the first end of inner wire, and wherein the second end of inner wire can coordinate with connecting interface.
On the other hand, the method for reequiping power cable comprises makes electric cable accessories disconnect from power cable, make the first end of all adapters as described herein be coupled to the end of power cable, and makes the second end of this adapter be coupled to connecting interface.
On the other hand, comprise with the method being conducive to voltage sensing end power cable connector being attached to power cable for being arranged on power cable by the terminal-connecting means with capacitor.The terminal-connecting means comprising capacitor is made to be coupled to power cable connector on the end of power cable.Terminal-connecting means comprises terminal-connecting means as herein described.
On the other hand, comprise for the method for reequiping power cable, make electric cable accessories disconnect from power cable and make all terminal-connecting means comprising capacitor as described herein be coupled to the end of cable.
Foregoing invention content of the present invention is not intended to describe each illustrative embodiment of the present invention or each embodiment.The details of one or more example of the present disclosure is illustrated in accompanying drawing and following explanation.The other features, objects and advantages of technology that can be obviously disclosed from specification and accompanying drawing and accessory rights requirement.
Accompanying drawing explanation
Fig. 1 comprises forming the conduction of electrode of capacitor sensor of capacitive voltage sensor or the diagram of the example terminal-connecting means of the electric isolution sections of semiconductive material.
Fig. 2 comprises T main body and forms the conduction of electrode of capacitor sensor of capacitive voltage sensor or the diagram of the example terminal-connecting means of the electric isolution sections of semiconductive material.
Fig. 3 A-3D shows the case step for being arranged on by the terminal-connecting means of Fig. 2 on power cable.
Fig. 4 A comprises the diagram with forming the conduction of electrode of capacitor sensor of capacitive voltage sensor or the terminal-connecting means of the adapter of the electric isolution sections of semiconductive material.
Fig. 4 B comprises the diagram with forming the conduction of electrode of capacitor sensor of capacitive voltage sensor or the terminal-connecting means of the adapter of the electric isolution sections of semiconductive material.
Fig. 5 shows the flow chart of the step for using terminal-connecting means or the adapter repacking power cable comprising capacitive voltage sensor.
Fig. 6 is the diagram of the assembly comprising the adapter being arranged on the Fig. 4 comprised on the various terminal connection parts of bend pipe.
Embodiment
In the following specific embodiments, with reference to the accompanying drawing as this paper part, accompanying drawing shows in the illustrated manner can put into practice specific embodiments of the invention.In this regard, such as " top ", " bottom ", " front portion ", " rear portion ", " head ", " forward " and " afterbody " directional terms use with reference to the orientation of described one or more figure.Because the parts of the embodiment of the present invention can be positioned to multiple different orientation, thus directional terminology for illustration of object, and do not have any restricted.Should be appreciated that without departing from the scope of the invention, other embodiments can be utilized, and amendment that is structural or logicality can be carried out.Therefore can not think that following embodiment has limited significance, and scope of the present invention is defined by the appended claims.
The disclosure describes the terminal-connecting means be used in middle voltage or high-voltage power connection application.In many aspects, terminal-connecting means comprises integrated sensor technology.Terminal-connecting means can be the fully integrated structure of the connecting interface with pre-installation, all as shown in figs. 1-2.Alternatively, terminal-connecting means can be constructed to the adapter that can be installed to connecting interface at the scene.In either side, terminal-connecting means can be reequiped, because it can be used for using the new annex with integrated detection technology to replace existing cable annex.In addition, existing government utility power cable directly can be connected to connecting interface and not need to use interface cable by terminal-connecting means as herein described.In addition, in conjunction with the parts of capacitive voltage sensor can be molded as concrete size by factory, thus make accurately and directly measure the voltage of conductor, to reduce or eliminate alignment time and cost simultaneously.In addition, terminal-connecting means can be less than the field-installed solution comprising interface cable of routine dimensionally.Terminal-connecting means, in tight quarters, can be useful especially in such as switchgear, generator, transformer tank, bus equipment and motor.In certain embodiments, terminal-connecting means provides the collapsible part that can expand for receiving the cable with certain diameter scope.
Fig. 1 comprises forming the conduction of electrode of capacitor sensor of capacitive voltage sensor 32 or the diagram of the example terminal-connecting means 10 of the electric isolution sections 24 of semiconductive material.Fig. 1 further illustrates the power cable 40 in the assembly with terminal-connecting means 10.
Terminal-connecting means 10 is relative compact, terminal-connecting means 10 is applicable to by equipment modification in the various space-constrained positions of power distribution network, and these positions include but not limited to underground position, switchgear, basement, motor, transformer tank and other position.Like this, terminal-connecting means 10 can be conducive to sensing function to add in the power distribution network be pre-existing in.Certainly, terminal-connecting means 10 also can be used in the installation of new power distribution network.
With reference to figure 1, terminal-connecting means 10 is configured to the electric field controlling to be produced by voltage in power cable 40 or high voltage, and wherein power cable is more than 1, the electric pressing operation of 000 volt.
Describe in further detail as follows, terminal-connecting means 10 is arranged on the end of power cable 40.Terminal-connecting means 10 comprises inner wire 12.As shown in Figure 1, inner wire 12 comprises that can be formed as the connector such as first end of recessed connector 14, the conductor 15 of axial elongation and the second end can be maybe the connecting interface of the one of such as lug plate 16.Alternatively, connecting interface can comprise separable connector, joint, registered jack and all other connecting interfaces as described herein.
Recessed connector 14 can have circular cross section.Recessed connector 14 is configured to be coupled to the nose portion of power cable connector 50 to be conducive to being electrically connected to the cable conductor 42 of power cable 40.In substituting, the first end of inner wire can be formed as convex or mix type connector.Terminal-connecting means 10 also optionally comprises the dielectric stress controlling feature structure 36 of the possibility for reducing Leakage Current and electric fault.Such as, Stress Control feature structure can be embodied as outwardly directed multiple shirt rim, is used for reducing the creep currents from the lug plate 16 exposed.
In one aspect, terminal-connecting means 10 comprises the multilayer main body 19 around inner wire 12.Such as, terminal-connecting means 10 also comprises insulating barrier 20, this insulating barrier 20 with one heart around inner wire 12 and the first end extending beyond inner wire 12 to form the empty internal sections 21 adjacent with the end of inner wire 12.As shown in Figure 1, empty internal sections 21 can be filled by the end of connector 50 and power cable 40.
Power cable 40 comprises cable conductor 42, and this cable conductor 42 can be solid or the axial conductor of stranded wire such as aluminium or copper alloy conductor.Insulating barrier 44 is with one heart around cable conductor 42.Power cable 40 optionally comprises adjacent with cable conductor 42 with one heart and around the semiconductive of cable conductor 42 or conductive layer 43.Optional semiconductive or conductive layer 43 work the possibility eliminating or reduce the space between cable conductor 42 and insulating barrier 44, and these spaces may make the leakage causing insulating barrier 44 deterioration occur.Also can provide outer conduction or semi-conductive layer 45 on power cable 40.The male connector 50 of conduction is installed to the end of cable conductor 42 to be conducive to the electrical connection between the cable conductor 42 of power cable 40 and the inner wire 12 of terminal-connecting means 10.
Terminal-connecting means 10 is configured to receive the end of cable conductor 42, the end of cable conductor 42 is assemblied in empty internal sections 21 and is electrically connected to the end of inner wire 12.
In some respects, inner wire 12 is formed by the solid metal of monolithic.In other example, inner conductor 12 can be formed by more than one sheet metal.In this type of example, the conductor 15 of elongation can comprise stranded wire conductor.In in other, inner conductor 12 partly can be formed as solid metal conductor, and is partly formed as stranded wire conductor.Under any circumstance, the conductor 15 of elongation provides direct electrical connection between the first end of inner wire 12 and the second end and mechanical connection, such as, provide between recessed connector 14 and lug plate 16.
In some instances, multilayer main body 19 comprises Stress Control element and can comprise shrinkable sleeves part in inside.Shrinkable sleeves can be such as can cold events sleeve pipe or can thermal contraction casing tube.Alternatively, main body 19 can push away direct type.In one aspect, insulating barrier 20 is can the part of cold events sleeve pipe, and this can be initially at the upper radial expansion of the removable supporting-core (as shown in Figure 2 all) forming empty internal sections 21 by cold events sleeve pipe.In this type of example, shrinkable sleeves can optionally radial contraction to engage the end of the cable conductor 42 inserted in empty internal sections 21 energetically.In some instances, shrinkable sleeves can optionally be shunk so that joining power cables 40 and connector 50 energetically, and this power cable comprises cable conductor 42 and insulating barrier 44.Case technology for being conducive to the shrinkable sleeves be connected with cable is disclosed in WO97/08801, and the full content of this patent is incorporated herein by reference.
The multilayer main body 19 of terminal-connecting means 10 also comprises adjacent with insulating barrier 20 and with one heart around outer conduction or the semi-conductive layer 22 of insulating barrier 20.In addition, the main body 19 of terminal-connecting means 10 comprises the electric isolution sections 24 with the conduction of the exterior surface of insulating barrier 20 or semiconductive material.The electric isolution sections 24 of conduction or semiconductive material forms the electrode of the capacitor sensor of capacitive voltage sensor 32.In addition, insulating barrier 20 can operate the dielectric of the capacitor sensor forming capacitive voltage sensor 32.
In some instances, the electric isolution sections 24 of conduction or semiconductive material can construct for annular ring and can by non-conductive axial segments 25 and outer conduction or semi-conductive layer 22 electric isolution.Non-conductive axial segments 25 can comprise non-conducting material or space.
In this type of example, outer conduction or semi-conductive layer 22 can be discontinuous so that the electric isolution sections 24 of conduction or semiconductive material is formed as annular ring structure at two lengthwise position places.In this type of example, conduction or the electric isolution sections 24 of semiconductive material and outer conduction or semi-conductive layer 22 can be formed by common material and manufacturing process, make the electric isolution sections 24 of conduction or semiconductive material and outer conduction or semi-conductive layer 22 have common thickness.
In other example, the electric isolution sections 24 of conduction or semiconductive material can be formed by the material different from outer conduction or semi-conductive layer 22, and/or has the shape that the difference formed by the flexible material being attached to insulating barrier 20 constructs such as rectangle or circle.The electric isolution sections 24 of conduction or semiconductive material can such as comprise conducting metal or conducting polymer.As an example, the electric isolution sections 24 of conduction or semiconductive material can comprise layers of copper.In some instances, terminal-connecting means 10 can comprise adhesive conduction or the electric isolution sections 24 of semiconductive material being attached to insulating barrier 20.In some instances, the electric isolution sections 24 of conduction or semiconductive material can comprise rubber band or self-fluxing nature material, such as rubber mastic material.In some instances, conduction or the electric isolution sections 24 of semiconductive material can comprise heat-shrinkable or can the material of cold events.
In some respects, the interior conduction of terminal-connecting means 10 or semi-conductive layer 18 and outer conduction or semi-conductive layer 22 and insulating barrier 20 can be applicable to the material that shrinkable sleeves applies made by any.Most of suitable material is the high elastic rubber material such as with low permanent deformation, such as ethylene propylene diene monomer (EPDM), elastomer silicone or their impurity, as required these materials can comprise conventional additive to make layer suitably conduct electricity, semiconductive or insulation.According to the type of the additive that may be incorporated in individual course, conduction or semi-conductive layer and insulating barrier can be made up of the material of identical or different type.Based on the inherent characteristic of material therefor or based on the additive added in material, interior conduction or semi-conductive layer and outer conduction or semi-conductive layer and insulating barrier can have conductivity in various degree and insulating properties.
The multilayer main body 19 of terminal-connecting means 10 can also comprise and is arranged on interior conduction between inner wire 12 and insulating barrier 20 or semi-conductive layer 18.Interior conduction or semi-conductive layer 18 adjacent with inner wire 12 with insulating barrier 20.Optional interior conduction or semi-conductive layer 18 work the possibility eliminating or reduce the space between inner wire 12 and insulating barrier 20, and these spaces may make the leakage causing insulating barrier 20 deterioration occur.For this reason, when inner wire 12 provides irregular surface, such as when the conductor 15 extended comprises twisted wire, interior conduction or semi-conductive layer 18 can be useful especially.In this regard, interior conduction or semi-conductive layer 18 can serve as cage electrode (cageelectrode).Interior conduction or semi-conductive layer 18 can also work the adhesion of the improvement provided between inner wire 12 and insulating barrier 20.In addition, the shape of inner conducting layer 18 can be configured to inner wire 12 provides geometrical stress to control.
In some respects, terminal-connecting means 10 also comprises capacitive voltage sensor 32.Capacitive voltage sensor 32 can operate to sense the voltage in inner wire 12, and this voltage also represents the voltage in the cable conductor 42 that obtained by the connection between the end of cable conductor 42 and the recessed connector 14 of inner wire 12.As mentioned above, the electric isolution sections 24 of conduction or semiconductive material forms the electrode of the capacitor sensor of capacitive voltage sensor 32.In addition, insulating barrier 20 can operate the dielectric of the capacitor sensor forming capacitive voltage sensor 32.
The electric isolution sections 24 of conduction or semiconductive material can operate the electrode of the capacitor sensor forming capacitive voltage sensor 32.Conduction or the electric isolution sections 24 of semiconductive material such as can have two relative first type surface such as the first first type surfaces and the second first type surface.First first type surface can with insulating barrier 20 Mechanical Contact.Second first type surface can with capacitive element such as capacitor, circuit or printed circuit board (PCB) (PCB) 26 Mechanical Contact.In many aspects, capacitive element such as PCB26 has predefined capacitance.
Capacitive voltage sensor 32 also comprises capacitive element (being PCB26) here, electric isolution sections 24 electrical contact of this capacitive element and conduction or semiconductive material.In one aspect, PCB26 be oriented near or directly on the electric isolution sections 24 of conduction or semiconductive material, to arrange for isolation sections 24 electrical contact with conduction or semiconductive material, then this isolation sections 24 is arranged on insulating barrier 20.PCB26 passes through electric isolution sections 24 and insulating barrier 20 Mechanical Contact of conduction or semiconductive material.PCB26 also comprises at least one other capacitor or other capacitive element to form capacitive voltage divider, and this capacitive voltage divider is used for the voltage being measured inner wire 12 by the detection voltage of the electric isolution sections 24 of conduction or semiconductive material.One or more capacitors of PCB26 can be electrically connected to the electric isolution sections 24 of conduction or semiconductive material.Capacitive element can be operating as the secondary capacitor in capacitive voltage divider.Capacitive voltage divider can comprise capacitor sensor and secondary capacitor, and this capacitor sensor comprises the electric isolution sections 24 of conduction or semiconductive material.
In some respects, PCB26 can be flexible, make PCB26 can bend with conformal conduction or semiconductive material electric isolution sections 24 around.PCB26 can form the electrical contact of electric isolution sections 24 to conduction or semiconductive material in some positions.The position that such an arrangement avoids only on the electric isolution sections 24 of conduction or semiconductive material has the shortcoming of electrical contact, such as avoid by the bad electrical contact of a position (such as, if contact is imperfect, be corroded or damage, this may hinder voltage to read) caused by problem.In addition, Multi-contact is provided can to avoid the problem caused by the following fact: the electronics entering single contact position from the edge lines of electric isolution sections 24 of conduction or semiconductive material is conducted electricity in longer path or the resistance of electric isolution sections 24 of semiconductive material.Then this problem can cause voltage drop again, and finally causes the voltage recording lower (namely not too accurate) on PCB26.
In some instances, PCB26 mechanically can be attached to the electric isolution sections 24 of conduction or semiconductive material.In other example, PCB26 can alternatively contact with electric isolution sections 24 pressure of conduction or semiconductive material.PCB26 can comprise two-sided PCB, and namely described PCB26 can have the first relative major opposing side and the second major opposing side.Alternatively, PCB26 can be positioned at the position of isolation sections 24 away from conduction or semiconductive material, and wherein PCB26 can be electrically coupled to the isolation sections 24 of conduction or semiconductive material.Such as, Fig. 4 B below described in further detail shows the example adapters 13 ' of PCB26 of the position with the isolation sections 24 be positioned at away from conduction or semiconductive material.
The conductive region of the exposure of PCB26 can comprise the layer of conducting metal such as gold, silver or copper.Layers of copper can be gold-plated, for enhancing electrical contact and/or for the protection of from environmental impact such as from corrosion.In different examples, the conductive region of the exposure of PCB26 can provide namely be interrupted, discrete surface area contact of continuous print surface area contact or patterning, contacts for the electric isolution sections 24 of conduction or semiconductive material.All parts of the surface area contact of patterning can be electrically connected to each other.The surface area contact of shop drawings patterning can need less electric conducting material, and only has negligible impact in the reliability and resistive loss of electrical contact.The surface area contact of patterning also can strengthen the mechanical flexibility of PCB26, thus is reduced in the risk and exfoliate risk that occur fault rupture when PCB26 bends.In an instantiation, the conductive region of exposure comprises the gold-plated layers of copper of patterning.
Such as, the pattern of surface area contact can be have grid that is square or argyle design.PCB26 can comprise flexible portion.The conductive region of exposure as above can be disposed on this flexible portion.Particularly, PCB26 can comprise flexible PCB.The flexible portion of PCB26 and particularly flexible PCB PCB26 can be made to conform to the electric isolution sections 24 of conduction or semiconductive material better.This enhances the electrical contact between the electric isolution sections 24 of PCB26 and conduction or semiconductive material then, and thus make contact more reliable, reduce resistive loss and be conducive to the more high accuracy of voltage sensor.
PCB26 can produce the signal of the voltage of instruction cable conductor 42 and inner wire 12.Sensor conductor 33 is attached to PCB26, for the sensor voltage signal of sending from PCB26.In some instances, can electronic measuring circuit be attached in PCB26; In other example, PCB26 can comprise electronic measuring circuit.
Earth lead (not shown) can be attached to outer conduction or semi-conductive layer 22, for being connected to electronic measuring circuit electrical ground.Electronic measuring circuit can operate to measure cable conductor 42 and inner wire 12 voltage relative to ground connection.
In some instances, PCB26 can be adapted to the multiple electronic units supporting and may be used for other object, such as the release mechanism under ground fault condition, and form the parts being used for temperature-compensating or the other sensing such as electronic circuit in temperature, humidity, magnetic field etc.
In one aspect, transducer insulating barrier 28 is adjacent with the isolation sections 24 of conduction or semiconductive material.On the other hand, transducer insulating barrier 28 adjacent with PCB26 and relative to conduct electricity or semiconductive material electric isolution sections 24 PCB26 opposite side on.Outer sensor conduction or semi-conductive layer 30 adjacent with the transducer insulating barrier 28 on the opposite side of the transducer insulating barrier 28 relative to PCB26.Outer sensor conduction or semi-conductive layer 30 such as can be electrically connected to outer conduction or semi-conductive layer 22 with ground potential.Outer sensor conduction or semi-conductive layer 30 and outer conduction or semi-conductive layer 22 can play a part substantially to encapsulate capacitive voltage sensor 32 (comprising the electric isolution sections 24 of conduction or semiconductive material, non-conductive axial segments 25, PCB26 and transducer insulating barrier 28).In some instances, outer sensor conduction or semi-conductive layer 30 and outer conduction or semi-conductive layer 22 feature structure that can form as one on other parts of terminal-connecting means 10 (comprising capacitive voltage sensor 32 and insulating barrier 20).
The design and structure of terminal-connecting means 10 is conducive to carrying out accurate size Control to all parts of terminal-connecting means 10.As previously mentioned, the hardware that inner wire 12 such as can be processed by the solid metal of single sections is formed.Therefore, the size and dimension of inner wire 12 can be accurately controlled.
In addition, when it is present, interior conduction or semi-conductive layer 18 can provide substantially consistent thickness.Particularly, interior conduction or semi-conductive layer 18 can provide substantially consistent thickness in conduction or the electric isolution sections 24 of semiconductive material and the lengthwise position of capacitive voltage sensor 32.Equally, insulating barrier 20 also can provide substantially consistent thickness in conduction or the electric isolution sections 24 of semiconductive material and the lengthwise position of capacitive voltage sensor 32.
The accurate dimension being conducive to carrying out by the design and structure of terminal-connecting means 10 controls to make capacitive voltage sensor 32 carry out accurate voltage measurement.Such as, electric capacity is directly relevant to the geometry of two conductive electrodes and insulant that form capacitor.Relative to capacitive voltage sensor 32, capacitor sensor is formed by inner wire 12, insulating barrier 20 and conduction or the electric isolution sections 24 of semiconductive material.By accurately controlling the size and dimension of electric isolution sections 24 of the size and dimension of inner wire 12, insulating barrier 20 and conduction or semiconductive material, also can accurately control capacitance.In addition, if inner wire 12 is formed by solid metal, then terminal-connecting means 10 can resist the bending stress of the geometry that can change capacitor sensor.On the contrary, inner wire 12 comprises in the design of twisted wire wherein, and the geometry of capacitor sensor can more easily change.
Under any circumstance, the electric capacity of capacitor sensor (comprising inner wire 12, insulating barrier 20 and conduction or the electric isolution sections 24 of semiconductive material) can be tested, so that the voltage signal of self-capacitance voltage sensor 32 is calibrated to the electric capacity of capacitor sensor in the future in the process manufacturing terminal-connecting means 10.This can increase the accuracy of capacitive voltage sensor 32 further.
In some instances, the electric isolution sections 24 of the conduction or semiconductive material that form the electrode of capacitor sensor can be overlapping with inner wire 12 along longitudinal dimension of insulating barrier 20.Although the electric isolution sections 24 that terminal-connecting means 10 shows conduction or semiconductive material is overlapping with a part for connector 50 along longitudinal dimension of insulating barrier 20, but in other example, the electric isolution sections 24 of conduction or semiconductive material can be only overlapping with the conductor 15 extended along longitudinal dimension of insulating barrier 20.
In some instances, the formation of structure terminal-connecting means 10 of overmolding can be used.Such as, can by interior conduction or semi-conductive layer 18 overmolding on inner wire 12.Similarly, if interior conduction or semi-conductive layer 18 are not included in terminal-connecting means, then insulating barrier 20 can be overmolding in interior conduction or semi-conductive layer 18 or the insulating barrier of the overmolding of direct overmolding on inner wire 12.Equally, outer conduction or semi-conductive layer 22 can be outer conduction or the semi-conductive layers of the overmolding of overmolding on insulating barrier 20.Similarly, in some respects, the multilayer main body 19 of terminal-connecting means 10 can be formed as the main body of continuous print overmolding, the main body of this overmolding comprise insulating barrier 20, outer conduction or semi-conductive layer 22, conduction or semiconductive material isolation sections 24 and optionally in conduction or semi-conductive layer 18.
Terminal-connecting means 10 can also comprise current sensor 34.Current sensor 34 is configured to measure the electric current in cable conductor 42 and/or inner wire 12.Current sensor 34 is coupled to sensor conductor 35 to export the signal of the electric current of instruction sensing.In some instances, current sensor 34 can comprise Rogowsky coil.Rogowsky coil produces the voltage with the components of electric current, is meant to utilize integrator to turn back to the signal with this current in proportion.Alternatively, current sensor can be constructed to produce the magnetic core current transformer with the electric current of the current in proportion on inner wire 12.Although current sensor 34 is positioned at the position adjacent with the capacitive voltage sensor 32 of the first end near inner wire, in other side, current sensor 34 can be positioned in the diverse location place on terminal-connecting means or on cable 40.
Because terminal-connecting means 10 also comprises both current sensor 34 and capacitive voltage sensor 32, so terminal connection device 10 is conducive to the calculating of phase angle (power factor), volt-ampere (VA), weary (VAr) and watt (W).
In some respects, terminal-connecting means 10 also can comprise conduction or the semiconductive stress control layer 27 of the surrounding being at least partially arranged in inner wire 12 coaxially.Stress control layer 27 can be formed by the siloxanes of high-g value such as containing carbon granules.Stress control layer can provide refraction Stress Control, for the risk of the potential discharges be reduced between inner wire 12 and outer conduction or semi-conductive layer 22.
Fig. 2 is the diagram of the schematic diagram illustrating comprising power cable 40, connector 50 and terminal-connecting means 11.Terminal-connecting means 11 is substantially similar to terminal-connecting means 10, and combining unlike terminal-connecting means 11 is such as relative to the T main body of lug plate or the separable connecting portion of bent pipe fashion.As terminal-connecting means 10, terminal-connecting means 11 comprises the conduction of electrode or the electric isolution sections of semiconductive material of the capacitor sensor forming capacitive voltage sensor.The feature structure being numbered the terminal-connecting means 11 identical with the character pair structure of terminal-connecting means 10 can be considered to be functionally similar.For simplicity's sake, relative to terminal-connecting means 11, limited or not detailed description is carried out to these feature structures.
In the assembly of Fig. 2, the power cable connector 50 of conduction is installed to the end of cable conductor 42, to be conducive to the electrical connection between the cable conductor 42 of power cable 40 and the inner wire 12 of terminal-connecting means 11.
Terminal-connecting means 11 is installed on the end of power cable 40.Terminal-connecting means 11 comprises inner wire 12.Inner wire 12 comprises the connecting interface that the first end of the connector with such as recessed connector, the conductor of axial elongation and the second end can be maybe such as separable connector 17, lug plate, joint, registered jack and all one of other connecting interface as described herein.In this example, the first end of inner wire is constructed to the recessed connector 14 that can coordinate with power cable connector 50 (being the male connector end of power cable connector 50 in this case), to be conducive to the cable conductor 42 being electrically connected to power cable 40.
Terminal-connecting means 11 also can comprise the multilayer main body 19 with insulating barrier 20, and this insulating barrier 20 extends beyond the first end of inner wire 12 around inner wire 12 with one heart.In this regard, main body 19 receiving unit be formed as at least partly expand into the shrinkable sleeves on removable supporting-core 23.The part expanded forms the empty internal sections 21 adjacent with the first end of inner wire 12.As shown in Figure 2, empty internal sections 21 is configured to the end of receiving connector 50 and power cable 40.In some instances, insulating barrier 20 can comprise the shrinkable sleeves forming empty internal sections 21.The multilayer main body 19 of terminal-connecting means 11 can also comprise and is arranged between inner wire 12 and insulating barrier 20 and is arranged on the interior conduction gone up at least partially or the semi-conductive layer 18 of the power cable connector 50 of insertion.Interior conduction or semi-conductive layer 18 work the possibility eliminating or reduce the space between inner wire 12 and insulating barrier 20, and these spaces may make the leakage causing insulating barrier 20 deterioration occur.The multilayer main body 19 of terminal-connecting means 11 is configured to the first end around (or contacting, when for unexpansive state) inner wire.In addition, the multilayer main body 19 of terminal-connecting means 11 is configured to extend towards the second end of inner wire 12.
Terminal-connecting means 11 also comprises can serve as the conduction of the capacitive voltage sensor such as electrode of capacitive voltage sensor 32 or the electric isolution sections of semiconductive material.As discussed in relation to Figure 1, capacitive voltage sensor 32 comprises conduction or the electric isolution sections of semiconductive material, non-conductive axial segments, capacitive element such as capacitor or PCB and transducer insulating barrier.In some instances, capacitive element mechanically can be attached to the electric isolution sections of conduction or semiconductive material.In other example, capacitive element (being PCB in this case) alternatively can contact with the electric isolution sections pressure of conduction or semiconductive material.Alternatively, capacitive element can be positioned at the position of electric isolution sections 24 away from conduction or semiconductive material.Still as discussed in relation to Figure 1, outer conduction or semi-conductive layer 22 can to conduct electricity with outer sensor or semi-conductive layer is combined substantially to encapsulate capacitive voltage sensor 32 around insulating barrier 20.
Terminal-connecting means 11 also can comprise current sensor 34.Current sensor 34 is configured to measure the electric current in cable conductor 42 and/or inner wire 12.Because terminal-connecting means 11 can comprise both current sensor 34 and capacitive voltage sensor 32, so terminal-connecting means 11 can be conducive to the calculating of phase angle (power factor), volt-ampere (VA), weary (VAr) and watt (W).
Terminal-connecting means 10,11 shows and can utilize two of the terminal-connecting means of capacitive voltage sensor 32 kinds of possible examples.In other embodiments, terminal-connecting means as herein described also can comprise the connecting interface of the part as single structure.Multiple connecting interface can be used, such as detachable connector, load cut-off bend pipe connector, straight plug, straight plugs and sockets, many way junction boxes, load cut-off reducing adapter plug bend pipe, injection port bend pipe, feedthrough parking lining, feedthrough bushing insert, dead point open circuit reducing plug bend pipe, attachment plug bend pipe, attachment plug, bushing insert and cable adaptor.In each in these examples, the inner wire 12 of size Control can provide and be connected with the direct mechanical of terminals and be electrically connected, to be conducive to carrying out accurate capacitive voltage sensing to the voltage in inner wire as disclosed herein.To the utilization of the technology disclosed herein of each had in these terminal-connecting means in essence of the present disclosure.
Fig. 3 A-3D shows for terminal-connecting means such as terminal-connecting means 11 is arranged on the case step on the end of power cable 40.Particularly, Fig. 3 A shows and is starting the terminal-connecting means 11 before installation process, the end of cable 40 and power cable connector 50.Power cable 40 can be prepared by a part for cable insulation 44 being removed make cable conductor 42 expose.In retrofit process, such as by cutting cable 40, the electric cable accessories be pre-existing in or the terminal-connecting means be pre-existing in can be removed from the end of cable 40.Then, the part that can remove cable insulation 44 exposes to make cable conductor 42.
Then, as shown in Figure 3 B, power cable connector 50 is arranged on the expose portion of cable conductor 42.As an example, by crimping or one or more screw, bearing pin or other mechanical link can be used, power cable connector 50 is fixed to the expose portion of cable conductor 42.In other example, use slight interference fit, power cable connector 50 can slide simply on the expose portion of cable conductor 42, and this power cable connector 50 still can be removed from the expose portion of cable conductor 42.
Then, as represented by Fig. 3 C, the cable 40 of assembling and connector 50 are inserted in the empty internal sections 21 formed by insulating barrier 20 and outer conduction or semi-conductive layer 22, make connector 50 be coupled to the recessed connector feature structure of inner wire 12.Alternatively, connector 50 can be constructed to matrix or mix type connector, and the first end of inner wire 12 is configured to coordinate with connector 50 with may correspond to.
Then, as represented by Fig. 3 D, the shrinkable sleeves formed by insulating barrier 20 and outer conduction or semi-conductive layer 22 can optionally be shunk at the end perimeter of cable 40.For utilize all as shown in figs. 3 a-3 c can the embodiment of terminal-connecting means of cold events sleeve portion, supporting-core can be removed the part of the interior surface of the main body making terminal-connecting means and connector 50 and power cable 40 close contact.As previously mentioned, the case technology for being conducive to the shrinkable sleeves being connected to cable is disclosed in WO97/08801.Therefore, as shown in Figure 3 D, terminal-connecting means 11 is installed on cable 40, and can provide voltage and current sensing function by capacitive voltage sensor 32 and current sensor 34.Optionally, the protective coating of available routine or chuck covering assemblies.
Although terminal-connecting means 10,11 can be provided with the connecting interface on the second end being pre-installed on inner wire 12, on the other hand, terminal-connecting means can be provided as the adapter that can be installed to traditional connection interface at the scene.Such as, Fig. 4 A is constructed to the diagram with forming the conduction of electrode of capacitor sensor of capacitive voltage sensor or the terminal-connecting means of the adapter 13 of the electric isolution sections of semiconductive material.In the alternate examples of Fig. 4 B, provide adapter 13 ', wherein the capacitive element of capacitive voltage sensor is positioned at the position of electric isolution sections away from conduction or semiconductive material.
Fig. 4 A is the diagram comprising power cable 40, power cable connector 50, cable adaptor 13 and the separable connector such as schematic diagram illustrating of T main body 60.In this regard, separable connector is constructed to T main body 60, but in substituting, separable connector can be constructed to bend pipe, i.e. connecting interface, this connecting interface can be such as lug plate 16, separable connector, joint, registered jack and all other connecting interfaces as described herein.Adapter 13 is similar to terminal-connecting means 10, does not comprise the connecting interface of pre-installation unlike adapter 13, but is configured on the contrary connecting interface is connected to cable such as cable 40.As terminal-connecting means 10, adapter 13 can comprise the conduction of electrode or the electric isolution sections of semiconductive material of the capacitor sensor forming capacitive voltage sensor.In substituting at one, adapter as herein described does not need the conduction of electrode or the electric isolution sections of semiconductive material that form capacitor sensor.The feature structure being numbered the adapter 13 identical with the character pair structure of terminal-connecting means 10 can be considered to be functionally similar.For simplicity's sake, relative to adapter 13, limited or not detailed description is carried out to these feature structures.
In the assembly of Fig. 4 A, the male connector 50 of conduction is installed to the end of cable conductor 42, to be conducive to the electrical connection between the cable conductor 42 of power cable 40 and the inner wire 12 of adapter 13.
Adapter 13 is installed on the end of power cable 40.Adapter 13 comprises inner wire 12.The first end of inner wire 12 can be formed as connector such as recessed connector.In substituting, the first end of inner wire 12 can be formed as convex or mix type connector.The recessed connector 14 of inner wire 12 is configured to the nose portion being coupled to power cable connector 50, to be conducive to the cable conductor 42 being electrically connected to power cable 40.The second end of inner wire extends beyond insulating barrier 20 and outer conduction or semi-conductive layer 22.The second end of inner wire can coordinate with one or more in the separable connector of connecting interface such as lug plate, terminals and such as T main body 60.May be used for replacing other suitable connecting interface of T main body 60 to comprise load cut-off bend pipe connector, straight plug, straight plugs and sockets, many way junction boxes, load cut-off reducing adapter plug bend pipe, injection port bend pipe, feedthrough parking lining, feedthrough bushing insert, dead point open circuit reducing plug bend pipe, attachment plug bend pipe, attachment plug and bushing insert.As a reference, an example bend pipe is bend pipe 70, this bend pipe 70 in figure 6 with cable 40 and adapter 13 assembly shown in.
Adapter 13 also can comprise the multilayer main body 19 with insulating barrier 20, this insulating barrier 20 with one heart around inner wire 12 and the first end extending beyond inner wire 12 to be formed in a part for the shrinkable sleeves that removable supporting-core expands.The part expanded forms the empty internal sections 21 adjacent with the first end of inner wire 12.Empty internal sections 21 is configured to the end of receiving connector 50 and power cable 40.In some instances, insulating barrier 20 can comprise the shrinkable sleeves forming empty internal sections 21.The multilayer main body 19 of terminal-connecting means 11 can also comprise and is arranged between inner wire 12 and insulating barrier 20 and is arranged on the interior conduction gone up at least partially or the semi-conductive layer 18 of the power cable connector 50 of insertion.Interior conduction or semi-conductive layer 18 work the possibility eliminating or reduce the space between inner wire 12 and insulating barrier 20, and these spaces may make the leakage causing insulating barrier 20 deterioration occur.The multilayer main body 19 of terminal-connecting means 11 is configured to the first end around (or contacting, when for unexpansive state) inner wire.In addition, the multilayer main body 19 of terminal-connecting means 11 is configured to extend towards the second end of the inner wire 12 being in exposed state.In substituting, empty internal sections 21 can be formed as heat-shrinkable or push away direct type adapter.
Adapter 13 also can comprise capacitive voltage sensor 32.As discussed in relation to Figure 1, capacitive voltage sensor 32 comprise conduction or the electric isolution sections of semiconductive material, non-conductive axial segments, capacitive element such as PCB and transducer insulating barrier.Still as discussed in relation to Figure 1, outer conduction or semi-conductive layer 22 can to conduct electricity with outer sensor or semi-conductive layer is combined substantially to encapsulate capacitive voltage sensor 32 around insulating barrier 20.
Adapter 13 also can comprise current sensor 34.Current sensor 34 is configured to measure the electric current in cable conductor 42 and/or inner wire 12.Because adapter 13 comprises both current sensor 34 and capacitive voltage sensor 32, so adapter 13 is conducive to the calculating of phase angle (power factor), volt-ampere (VA), weary (VAr) and watt (W).In substituting, adapter 13 can to omit in capacitive voltage sensor 32 and current sensor 34 any one or both.
Fig. 4 B shows the substituting adapter 13 ' of the current sensor comprising the capacitive element (being PCB26) with long range positioning herein.Fig. 4 B is the diagram comprising power cable 40, connector 50, cable adaptor 13 ' and the separable connector such as schematic diagram illustrating of T main body 60.In this regard, separable connector is constructed to T main body 60, but in substituting, separable connector can be constructed to bend pipe.Alternatively, adapter 13 ' can be connected to another connecting interface, such as lug plate 16, joint, registered jack and all other connecting interfaces as described herein.Adapter 13 ' is similar to adapter 13, the tab 29 be electrically connected with the capacitive element of long range positioning by capacitive sensor 32 by wire 33 ' is comprised, this capacitive element such as capacitor, circuit or PCB26 ' or their combination unlike adapter 13 '.Such as, PCB26 can be arranged in process from the current data of adapter/terminal-connecting means and/or the remote port subelement of voltage data.The feature structure being numbered the adapter 13 ' identical with the character pair structure of adapter 13 can be considered to be functionally similar.For simplicity's sake, relative to adapter 13 ', limited or not detailed description is carried out to these feature structures.
In in Fig. 4 B, the capacitive sensor 32 of adapter 13 ' can radially expand or shrink, and can not adversely affect capacitor electrode die opening to obvious degree.Tab is formed by with outer conduction or the similar material of semi-conductive layer.
Adapter 13,13 ' be modular, can reequip and be compatible with multiple client's annex.Similarly, adapter 13,13 ' is applicable to field repair operation.Adapter can be reequiped on existing power cable, wherein existing electric cable accessories (such as, separable connector, terminals, other connecting interface etc.) can remove and replace the annex removed with identical or different connecting interface by user.Adapter 13,13 ' is also configured to be suitable for using in the region of spatial limitation.Adapter 13,13 ' is also compatible with the cable of a series of size, particularly comprise can cold events sleeve portion time.
Fig. 5 shows for using all terminal-connecting means as those described herein or adapter to install or reequiping a kind of flow chart of case method of existing power cable.For clarity sake, relative to the adapter 13 of Fig. 4 A, the technology shown in Fig. 5 is described.
In a first step, the electric cable accessories be pre-existing in is disconnected (80) from the power cable 40 be pre-existing in.The example of the type of electric cable accessories comprises T main body, load cut-off bend pipe connector, straight plug, straight plugs and sockets, many way junction boxes, load cut-off reducing adapter plug bend pipe, injection port bend pipe, feedthrough parking lining, feedthrough bushing insert, dead point open circuit reducing plug bend pipe, attachment plug bend pipe, attachment plug and bushing insert.The cable adaptor be pre-existing in is disconnected from cable 40 and can comprise cutting cable 40.Therefore, in the process removing the cable adaptor be pre-existing in, cable 40 can shorten to a certain extent.Cable 40 can be prepared in a conventional manner come for connecting.
Once be disconnected from cable 40 by the electric cable accessories be pre-existing in, just cable adaptor 13 is coupled to the end (82) of cable 40.In some instances, before end cable adaptor 13 being coupled to cable 40, can first power cable connector 50 be arranged on the end of cable conductor 42.Then, the second end of cable adaptor 13 is coupled to the connecting interface be pre-existing in, wherein connecting interface can be the separable connector (84) of such as lug plate, terminals or such as T main body 60.Alternatively, cable adaptor can be installed in new connecting interface, this connecting interface can with the cable interface be pre-existing in or annex identical or different.Connecting interface can be connected to the electric equipment of power network or network.
In some instances, the sensor conductor from the flexible circuit of capacitive voltage sensor 32 can be connected to computing equipment, to be conducive to receiving the signal from the flexible circuit representing the voltage sensed by capacitive voltage sensor 32.
Although in this article for describe preferred embodiment object and illustrate and describe specific embodiment, but those of ordinary skill in the art will understand, without departing from the scope of the present invention, multiple alternative or equivalent execution mode can be there is and replace shown and described specific embodiment.Those technical staff in this area will readily appreciate that, can implement the present invention by numerous embodiment.Present patent application is intended to any remodeling or the modification that contain embodiment discussed herein.
Claims (52)
1., for a terminal-connecting means for power cable, comprising:
Inner wire;
Continuous main body, described continuous main body to be arranged on described inner wire and to comprise:
Insulating barrier, described insulating barrier around described inner wire and the first end extending beyond described inner wire to form the empty internal sections adjacent with the described end of described inner wire;
Outer conduction or semi-conductive layer, described outer conduction or semi-conductive layer adjacent with described insulating barrier and around described insulating barrier; With
The electric isolution sections of conduction or semiconductive material, the exterior surface of described electric isolution sections and described insulating barrier,
Wherein said terminal-connecting means is configured to the end of the cable conductor receiving described power cable, the described end of the cable conductor of described power cable is assemblied in described empty internal sections and is electrically connected to the described first end of described inner wire;
The electric isolution sections of wherein said conduction or semiconductive material forms the electrode of the capacitor sensor of capacitive voltage sensor;
And wherein said insulating barrier can operate the dielectric of the described capacitor sensor forming described capacitive voltage sensor.
2. terminal-connecting means according to claim 1, is also included in the interior conduction between described inner wire and described insulating barrier or semi-conductive layer, described interior conduction or semi-conductive layer adjacent with described inner wire with described insulating barrier.
3. terminal-connecting means according to claim 2,
Wherein said interior conduction or semi-conductive layer are conduction or semi-conductive layers in the overmolding of overmolding on described inner wire, and
Wherein said insulating barrier is the insulating barrier of the overmolding of overmolding in described interior conduction or semi-conductive layer.
4. terminal-connecting means according to claim 2, wherein said outer conduction or semi-conductive layer are outer conduction or the semi-conductive layer of the overmolding of overmolding on described insulating barrier.
5. the terminal-connecting means according to any one of claim 1-4, wherein said insulating barrier has substantially consistent thickness.
6. the terminal-connecting means according to any one of claim 1-5, wherein said inner wire is the element of processing.
7. the terminal-connecting means according to any one of claim 1-6, wherein said inner wire comprises solid inner wire.
8. the terminal-connecting means according to any one of claim 1-5, wherein said inner wire comprises twisted wire inner wire.
9. the terminal-connecting means according to any one of claim 1-8, wherein forms the described conduction of the described electrode of described capacitor sensor or the electric isolution sections of semiconductive material is overlapping with described inner wire along longitudinal dimension of described insulating barrier.
10. the terminal-connecting means according to any one of claim 1-9, wherein said outer conduction or semi-conductive layer are discontinuous at two lengthwise position places, the electric isolution sections of described conduction or semiconductive material is formed as annular ring structure.
11. terminal-connecting means according to any one of claim 1-10, also comprise the non-conducting material between the electric isolution sections and the remainder of described outer conduction or semi-conductive layer of described conduction or semiconductive material.
12. terminal-connecting means according to any one of claim 1-11, also comprise the adhesive electric isolution sections of described conduction or semiconductive material being attached to described insulating barrier.
13. terminal-connecting means according to any one of claim 1-11, the electric isolution sections of wherein said conduction or semiconductive material is self-fluxing nature material or rubber band.
14. terminal-connecting means according to any one of claim 1-13, also comprise described capacitive voltage sensor.
15. terminal-connecting means according to claim 14, wherein said capacitive voltage sensor comprises the conducting element with the electric isolution sections electrical contact of described conduction or semiconductive material, to be conducive to the voltage potential of the electric isolution sections measuring described conduction or semiconductive material.
16. terminal-connecting means according to any one of claim 1-15, the electric isolution sections of wherein said conduction or semiconductive material comprises a part for described outer conduction or semi-conductive layer.
17. terminal-connecting means according to any one of claim 1-16, also comprise the current sensor being configured to the electric current measured in described cable conductor or described inner wire.
18. terminal-connecting means according to claim 17, wherein said current sensor comprises Rogowsky coil.
19. terminal-connecting means according to any one of claim 1-18,
Wherein said terminal-connecting means also comprises the lug plate with the second end one of described inner wire, and.
20. terminal-connecting means according to any one of claim 1-18,
Wherein said terminal-connecting means also comprises the connecting interface with the second end one of described inner wire, and.
21. terminal-connecting means according to any one of claim 1-20, wherein said outer conduction or semi-conductive layer, along the end sections of described terminal-connecting means comprising described empty internal sections, extend beyond the length of described interior conduction or semi-conductive layer.
22. terminal-connecting means according to any one of claim 1-21, wherein said insulating barrier is formed at least part of of the shrinkable sleeves forming described empty internal sections, and wherein said shrinkable sleeves can radially be shunk to engage the described end of the described cable conductor of the described power cable in described empty internal sections energetically.
23. 1 kinds of adapters connected for middle voltage or high-voltage power cable, comprising:
Inner wire, described inner wire has first end and the second end;
Continuous main body, described continuous main body to be arranged on described inner wire and to comprise:
Insulating barrier, described insulating barrier around described inner wire and the described first end extending beyond described inner wire to form the empty internal sections adjacent with the described first end of described inner wire;
Outer conduction or semi-conductive layer, described outer conduction or semi-conductive layer adjacent with described insulating barrier and around described insulating barrier; With
The electric isolution sections of conduction or semiconductive material, the exterior surface of described electric isolution sections and described insulating barrier,
Wherein said adapter is configured to the end of cable conductor receiving power cable, the described end of the described cable conductor of described power cable is assemblied in described empty internal sections and is electrically connected to the described first end of described inner wire, and
The described the second end of wherein said inner wire extends beyond described insulating barrier and described outer conduction or semi-conductive layer, the described the second end of wherein said inner wire is contrary with the described first end of described inner wire, and the described the second end of wherein said inner wire can coordinate with connecting interface.
24. adapters according to claim 23, also to comprise between described inner wire and described insulating barrier conduction or semi-conductive layer, described interior conduction or semi-conductive layer adjacent with described inner wire with described insulating barrier.
25. adapters according to claim 24,
Wherein said interior conduction or semi-conductive layer are conduction or semi-conductive layers in the overmolding of overmolding on described inner wire, and
Wherein said insulating barrier is the insulating barrier of the overmolding of overmolding in described interior conduction or semi-conductive layer.
26. adapters according to claim 24, wherein said outer conduction or semi-conductive layer are outer conduction or the semi-conductive layer of the overmolding of overmolding on described insulating barrier.
27. adapters according to any one of claim 23-26, wherein said insulating barrier has substantially consistent thickness.
28. adapters according to any one of claim 23-27, wherein said inner wire comprises solid inner wire.
29. adapters according to claim 23-28, wherein said inner wire comprises the element of processing.
30. adapters according to any one of claim 23-26, wherein said inner wire comprises twisted wire inner wire.
31. adapters according to any one of claim 23-30, the described end that wherein said adapter is formed at the described cable conductor of described power cable receives the described end of the described cable conductor of described power cable when engaging with power cable connector, wherein said power cable connector is configured to be received in the described empty internal sections formed by described insulating barrier.
32. adapters according to any one of claim 23-31, wherein said insulating barrier comprises the shrinkable sleeves forming described empty internal sections, and wherein said shrinkable sleeves can optionally be shunk to engage the described end of the described cable conductor of the described power cable in described empty internal sections energetically.
33. adapters according to any one of claim 23-32, also comprise the electric isolution sections with the conduction of the exterior surface of described insulating barrier or semiconductive material, the electric isolution sections of wherein said conduction or semiconductive material forms the electrode of the capacitor sensor of described capacitive voltage sensor, and wherein said insulating barrier can operate the dielectric of the described capacitor sensor forming described capacitive voltage sensor.
34. adapters according to any one of claim 23-33, wherein form the described conduction of the described electrode of described capacitor sensor or the electric isolution sections of semiconductive material is overlapping with described inner wire along longitudinal dimension of described insulating barrier.
35. adapters according to any one of claim 23-34, wherein said outer conduction or semi-conductive layer are discontinuous at two lengthwise position places, the electric isolution sections of described conduction or semiconductive material is formed as annular ring structure.
36. adapters according to any one of claim 23-35, also comprise the non-conducting material between the electric isolution sections and the remainder of described outer conduction or semi-conductive layer of described conduction or semiconductive material.
37. adapters according to any one of claim 23-36, also comprise the adhesive electric isolution sections of described conduction or semiconductive material being attached to described insulating barrier.
38. adapters according to any one of claim 23-37, also comprise described capacitive voltage sensor.
39. according to adapter according to claim 38, wherein said capacitive voltage sensor comprises the conducting element with the electric isolution sections electrical contact of described conduction or semiconductive material, to be conducive to the voltage potential of the electric isolution sections measuring described conduction or semiconductive material.
40. adapters according to any one of claim 23-39, the electric isolution sections of wherein said conduction or semiconductive material comprises a part for described outer conduction or semi-conductive layer.
41. adapters according to any one of claim 23-40, also comprise the current sensor being configured to the electric current measured in described cable conductor or described inner wire.
42. adapters according to claim 41, wherein said current sensor comprises Rogowsky coil.
43. adapters according to any one of claim 23-42, wherein said outer conduction or semi-conductive layer, along the end sections of described terminal-connecting means comprising described empty internal sections, extend beyond the length of described interior conduction or semi-conductive layer.
44. 1 kinds of assemblies, comprising:
Power cable, described power cable comprises:
Cable conductor, described cable conductor extends along the length of described power cable,
Cable insulation, described cable insulation around described cable conductor, except the part of described cable conductor of stretching out from the described cable insulation of the end portion office at described power cable,
Inner cable semiconductor or conductor layer, described inner cable semiconductor or conductor layer between described cable conductor and described cable insulation, described inner cable semiconductor or conductor layer adjacent with described cable insulation, and
Outer cable semiconductor or conductor layer, described outer cable semiconductor or conductor layer adjacent with described cable insulation and around described cable insulation; And
Terminal-connecting means according to any one of claim 1-21, wherein said terminal-connecting means is fixed to the described end sections of described power cable.
45. assemblies according to claim 44, the described the second end of wherein said inner wire and the connecting interface of be selected from group that the following form integrally:
Load cut-off bend pipe connector;
T connector;
Straight plug;
Straight plugs and sockets;
Many way junction boxes;
Load cut-off reducing adapter plug bend pipe;
Injection port bend pipe;
Feedthrough parking lining;
Feedthrough bushing insert;
Dead point open circuit reducing plug bend pipe;
Attachment plug bend pipe;
Attachment plug;
Cable adaptor; With
Bushing insert.
46. 1 kinds of assemblies, comprising:
Adapter according to any one of claim 23-43; And
The described the second end of wherein said inner wire is fitted to connecting interface.
47. assemblies according to claim 68, also comprise described power cable, and the described end of the described cable conductor of wherein said power cable to be received in described empty internal sections and to be electrically connected to the described first end of described inner wire.
48. 1 kinds for reequiping the method for power cable, described method comprises:
Electric cable accessories is disconnected from described power cable;
The first end of the adapter according to any one of claim 23-43 is coupled to the end of described power cable; And
The second end of described adapter is coupled to connecting interface.
49. methods according to claim 48, wherein disconnect described electric cable accessories from described cable and comprise the described cable of cutting.
50. 1 kinds for the terminal-connecting means with capacitor is arranged on to be conducive to the method for voltage sensing on power cable, described method comprises:
Power cable connector is attached on the end of described power cable, and
The terminal-connecting means comprising described capacitor is coupled to the described power cable connector on the described end of described power cable, wherein said terminal-connecting means comprises the terminal-connecting means according to any one of claim 1-21.
51. 1 kinds for reequiping the method for power cable, described method comprises:
Electric cable accessories is disconnected from described power cable; And
The terminal-connecting means comprising described capacitor is coupled to the end of described cable, wherein said terminal-connecting means comprises the terminal-connecting means according to any one of claim 1-21.
52. methods according to claim 51, wherein disconnect described electric cable accessories from described cable and comprise the described power cable of cutting.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
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| US201361839543P | 2013-06-26 | 2013-06-26 | |
| US61/839,543 | 2013-06-26 | ||
| PCT/US2014/043137 WO2014209739A1 (en) | 2013-06-26 | 2014-06-19 | Power cable terminal connection device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105340145A true CN105340145A (en) | 2016-02-17 |
| CN105340145B CN105340145B (en) | 2019-06-18 |
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|---|---|---|---|
| CN201480036703.8A Expired - Fee Related CN105340145B (en) | 2013-06-26 | 2014-06-19 | Power cable terminal-connecting means |
Country Status (7)
| Country | Link |
|---|---|
| US (1) | US9742180B2 (en) |
| EP (1) | EP3014721A4 (en) |
| CN (1) | CN105340145B (en) |
| AR (1) | AR096724A1 (en) |
| CA (1) | CA2916569A1 (en) |
| TW (1) | TW201515353A (en) |
| WO (1) | WO2014209739A1 (en) |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111122916A (en) * | 2018-10-30 | 2020-05-08 | 普睿司曼股份公司 | Retractable cable connector and voltage sensor |
| CN109449708A (en) * | 2018-11-15 | 2019-03-08 | 广州供电局有限公司 | Cable connection methods |
Also Published As
| Publication number | Publication date |
|---|---|
| EP3014721A4 (en) | 2017-02-15 |
| AR096724A1 (en) | 2016-01-27 |
| TW201515353A (en) | 2015-04-16 |
| EP3014721A1 (en) | 2016-05-04 |
| US9742180B2 (en) | 2017-08-22 |
| CN105340145B (en) | 2019-06-18 |
| CA2916569A1 (en) | 2014-12-31 |
| US20160134094A1 (en) | 2016-05-12 |
| WO2014209739A1 (en) | 2014-12-31 |
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